Car roof



May 29, 1923.

C. D. BON SALL CAR ROOF Filed Dec. 28, 1922 Patented ay 2, 19223o CHARLES' DAVID BONSALL, OF` PITTSBURGH, PENNSYLVANIA, ASSIGNOR" TO P. I-I.

MURPHYOOMPAN'Y, or NEW KENSINGTON, PENNSYLVANIA;` A CORPORATION or' PENNYSYIVANIA.

CARkk RO OF.

Applicatonfilcd December 28, V1922.

This invention relatesftorcar roofs ofthe Outside flexible type wherein metal roof sheets. extend `from rid-ge-V to eaves Vof the car and are-loosely` securedto the-ear andto eachother and are movab'ly heldin position on the car by retaining members about'which the slieetsrOll or?rv Oscillate inaccommodating themselves'- tol the distortions Ofthe car flame;

The" principaliobjectf of the` present inven-V tion' is tol" provide a simple' and? efficient' arrangementY that willi secure anvl oscillatoryy movement of the sheets aroundy aregion'V near the-middle* of their'rridge ends whenever there is movement of the sheets. AnotherV obj ect o-f-the :invention `is to prevent damage f to thefsheetsdufring such movement; Another'object is tofsimplify the operation ofl pressing; the sheets* and thereby reduce the cost'ther'eof:

Theinvention consists principally in forming the rooffsheetswithoutwardly bowed or convex ridge ends that are" held in `Contact with each* other"I andi"l with pivotal portions of retaining `memloersiat all times, whereby said sheets-Yare-held' againstfboth relative andjointf bodily movement cros'swise'of the carl' and areffor'ced to rock simultaneously one `on'the other and on they pivotal portions of the retaining member wheneverzth'ereis movement ofthe roof sheets.' The invention further consists-jinv theparts and inthe' arrangements -and l combinations of parts `here'- inafter described 1 and f claimed.

In the" accompanying drav'fi'ng;` which forms partr of this*specification-and wherein like" symbols refer: to like parts. Wherever they-Occur; Y v

isa plan view of afportion of a car` roof embodying my inventionf FigQ'is'afVertiOal crosssection through one of,'tlfetransverse'4 seams on the `li'n'e 2 2 in'"'Fig .1Q l

Figi' 3is a .vertical crossesectionl'through 'the f eaves." portion 'Oi:`"'th'e' roof,l the section being taken adjacentito" a transverse seam on thel line "3e-3' :in-Fig.: l.'y

Serial No. 609,467.

F ig, 4 is a vertical cross-section through the ridge midway of thevtransverse seams on the line' 4 4 in Fig. l; :and

Fig. 5 is a similar section' taken adjacent tothe ridge corners of a pair of oppositely disposed roof sheets.

Referring to the accompanying drawing, my invention is shown applied to the ordinary type of car comprising side sheathing 6 and-roof sheathing 7 which issupported atv the eaves on side plates 8 and at the ridge by means/of a ridge poley 9. Metal roof sheets l are arranged` in pairs onopposite sides of the ridge'.- Each pair of' roof sheets is` spaced from the adjacent pairs at their sides, and betweenthe spaces thus formed are arranged mullions-or battens-lL T-he mullions extend transversely of the car from-eaves to eavesvthereOfv-and arefof less widthI than the spacesl between the roof sheets. t

The eaves ends of the roof sheets are loosely secured to the substructure by means of angle liashing. strips l2.y These flashing strips rest in a rabbet formedinthe eaves ends of the roofsheathing and-extend from end to endof the lcar passi-ng'beneaththe eaves ends lof thel mullions ll. The vertical flange of eaeheaves flashing .strip is nailed or oth'erwisesecured to the'y side of the car and the portion of the strip resting in the rabbet is doubled. back upon itselfyas at y13; and the eaves ends ofy the roof .sheets are doubled under, as: at 14,'r and hookedinto the doubled back portion of the flashing strip. The side margins vof the vroof sheetsare flanged up and turned in and downlformin'g hooked flanges l'. The sidey marginal flanges 15S/Of the roof sheets on l'each side of a mullion are covered by transverse seam caps 1G ofl inverted channel-shaped kcross-section. These transverse' seam caps straddle the'mub lions andthe side'marginal flanges 15 of adjacent sheets andha-ve Vinwardly and upwardly extending .hookedfanges 17 adapted to interlock with the hooked side flanges of the roof sheets.` The eaves ends of the top portions of the transverse seam caps yare bent'down overtheends of the mullions and then' turnedunder the adjacent doubled under flanges l4fof the roof sheets'located on each side4 ofthe mullions.

The"ridgennargins 'ofthe roof sheets* are bent upwardly and thence outwardly and downwardly'to form ridge flanges lSfof' substantially, inverted cl'iannel-shaped secoutwardly bowed or lengthwise convex'. 1n'

verted channel-shaped ridge seam caps 19 str addle`y the ridge flanges 18 of each adjacent pair off-root1 sheets and khave their lower margins fiangedoutwardly to form base flanges 2O which rest on the body portions of the'sheets between the transverse seamv covers 16. The ends of ad]acentrldge'seamr caps and the ridge ends of adjacent Vtransverse seam caps .are 'secured in position by the usual vpan-shaped four-'way center or cornercaps 21 having' anfopenmg my each lof their four walls to receivethe ends of the ridgeand transverse seam-caps. Y

Running boards 22 are lsecured to running board-saddles 23 which `rest on thetrans` verse seam caps andare `supportedon the mullions '11 arranged beneath `the transverse seam caps, thus permitting movement of' the sheets under the transverse and'ridge seam caps.- jTherunning board saddles are secured to .the substructure by saddle-bolts 24 which also secure the corner caps in posi'- The ridgeseam caps are of reduced width midway of their length for the 'purpose of holding'the opposed convex surfacesV of the ridge flanges ofthe roofv sheets in contact with eachother at all times, whereby both relative and jointy bodilymovement ofthe root sheets is'prevented in directions cross? wise of the car and thessheets are forced to rock or roll simultaneously one on the other and yon theacontactingportions ofthe ridge seam caps whenever there is movement of the sheeta 'The narrow middle portions ot the ridge seam :cap serves to limitits contact with the sheets to the middle portions of their ridge seamflanges while the `.wide end portions oi said caps, together-with thereverselyy curved ridge iianges, providel suflicient clearance betweenl the co-operating ridge flanges of the sheets and the walls of theseam caps to permit angular movement of said flanges during the sluingof the sheets in accommodating vthemselves to the kdistortions of the substructure which occur in service. v v,

- It isy noted as an important advantage of my invention that the convex ridgefends of the sheets can belformed in one operation, because the ridge flanges-,are formed awayA from therectangular body portions of the sheets and have their dependingy outer kportion bowedto produce the convex ridge ends. Whatc'lai-mjis: 1. A flexible car roof comprising roof on the other whenever there lis movement of' l the roof sheets. l

2. A flexible car roof comprising roor` sheets arranged lon opposite sides of the ridge and having ridge ends that are convex,`

and means for holding the middle'` portions of said 'convex ridge ends -inV contact with.k

each other whereby. said" sheets are adapted to roel; one on the other whenever there is movement of the roof sheets. c l

3. A iiexible` kcar roof comprising roof sheets arranged` on opposite sides -of theridge and havingupstanding flanges at theirridge ends that areconvex, and a yridge seam cover straddlmgthe convex ridge flangesof opposite sheets, said ridge'seain cover closely embracing Vsaid convexffridge flanges for holding the same in Contact atpointsmidway of their lengthY and being. elearthereof at their ends, whereby said roof-sheets are secured Tat the ridge against :relativebodily movement crosswise of the car and are adapted to roclrone on theother land on'the closely embracing portions ofsaid vridge seam cap whenever there ismOVement-of Mthe roof sheets.

,4; A flexiblevear`- roof comprising-roofisheets arranged onl opposite. sides of vthe ridge and yhaving upstanding flanges at, their ridge ends that are convex, and a ridge seam cover secured tol the'car at the ridgeand straddling theconvexridge flanges/of opposite sheets, said ridge seam cover closely embracing said convex ridge flanges for holding the same in contactat pointsm'idway oftheir length and being clear thereof at theirends, whereby said roof sheets are secured atjthe ridge against'both relative and joint bodily movementr crosswise ofthe .car and are adapted to rock oneon the other jand onftlie closely embracingj yportions ofysaid yridge seam vcap? whenever there is movement ofthe v roo-fsheets.

5.- A flexible carroof comprising roof sheets arranged onoppositesides ofthe ridge and having ridge' flanges that Aarebent uplio ' wardly, outwardly and downwardly, the dev pendingv members of the ridge lflanges of opposite sheetsv being 'bowed outwardly from end toend for co-operation with each other, and means for holding the bowed portions of' the ridge flanges of said sheets in Contact at l points midway `oftheir ends, 'Vvvherebyl said sheets areadaptedto rock one .on the other whenever there, is movement ofthe sheets.

6. A flexible car roofl comprising roof sheets arranged on opposite sides of therid'ge and having ridge flanges that are bent unwardly, outwardly and downwardly, the depending portions of the ridge flangesl of said sheets being bowed outwardly from end to end for co-operation with each other, and a ridge seam cover straddling the ridge flanges of opposite sheets, said ridgev seam cover closely embracing said ridge flanges at points midway of their length for holding the bowed the roof sheets.

7. A flexible car roof comprising roof sheets arranged on opposite sides of the ridge and having ridge flanges that are bent upwardly, outwardly and downwardly, the depending portions of the ridge flanges of said sheets being bowed outwardly from end to end for co-operating with each other, and a ridge seam cover secured to the car at the ridge and straddling the ridge flanges of opposite sheets, said ridge seam cover closely embracing said ridge flanges at points mid way of their length for holding the bowed portions thereof in contact at points midway of their length and being clear thereof at their ends, whereby said roof sheets are sen cured at the ridge against both relative and joint bodily movement crosswise of the car land are adapted to rock one on the other and on the closely embracing portions of said ridge seam covers whenever there is inovement 'of the roof sheets.

8. A car roof sheet having side and ridge flanges, the ridge flange of Said sheet being bent upwardly, outwardly and downwardly, the depending portion of said ridge seam flange being bowed outwardly from end to end thereof.

Signed `at New Kensington, Pennsylvania, this 22nd day of December, 1922.

CHARLES DAVID; BONSALL. 

